Harped (5)
I believe the answer is:
dwelt
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">harped</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for dwelt that I've seen before include "Persistently thought" , "Thought moodily (about something)" , "Stayed" , "Had house" , "hung out" .)